Cable hook or step



H. O. ROCKWELL CABLE HOOK 0R STEP Filed July ll. 1923 ffy @oirngf- Patented Jan., 3l,

All?.

CABLE HUUR 0R STEP.

Application led July 11,

Une object ot iny invention is to provide a novel structure equally adapted tor use a support for electric wires and cables, as a bracket tor` supporting shelving made of wood7 metal or glass, as a pole step, or as a bracket to support pipe or steel bars and the like, which shall be characterized by the fact that in addition to being1 easily and quickly detachable troni its supporting structure, it is rigidly hold troni rotation about its longitudinal anis.

Another object ot the invention is to provide a novel combination oi braclret and a supporting` structure detachably connected and yet so associated that said bracket cannot be accidentally separated 'troni said structure. v i i A further object of the invention is to provide a novel ttorin ot cable-supporting.,` hook or bracket which shall include ineans for electually preventing its rotation while a wire or cable is being' drawn over it and which shall likevvise'prevent its coming unhoolred until it is raised or swung` upwardly through an angle of approximately 150.

'lhese objects and other advantageous ends l attain as hereinaiter set forth, reference beinghad to the `accompanying` drawings, in which,

lling. l is a vertical section ci a supporting' structure illustrating niy invention applied thereto; v

Fig, E?, is a perspective view ol a supportw ing bar or rach: provided with T-shaped openings for the reception ot hooks or brackets in accordance with my invention;

Fig. 3 is a perspective view ci one torni oi' hook or bracket :tor supporting electric wires and cables;

ll is an elevation showingn iny invenH tion adapted tor use a pole step 3 Fig. 5 is a iront elevation ot one of the sumiorting fixtures shown in Fig. 4.; and,

Fig'. 6 is a vertical section showing my in vention as used in supporting` shelving.

ln Figs. il. and 2 ot the above drawings, '1 represents an elongated bar, preferably ot channel section mounted on a wall, traine or other suitable structure 2. ln the present instance, said bar is made in a number of lengths each having at one end a perforated projecting1 tongue 3 designed to be attached to the opp site end ot a similar length by bolts or lag; screws a which also hold said bar sect-ions to a wall or other supporting ffitrnctnre 1923. Serial No. 650,855;

The web or main portion of the channel bar or section l is :torined with a succession ot slots which may be roughly described as of flattened T-shape; that is to say, they each have a narrow vertically extending lower portion and a transverse upper portion.

The hoolr or bracket inade in accordance with my invention consists of a generally straight elongated body portion 6 preferably of ilat material havingn depending` side flanges 7 decreasing in depth from the inner to the outer endwhich is preferably slightly turned up as indicated at 8 and is provided with a hole 9 therein. rllhe opposite end oi? the body 6 consists ot a head portion lO whose width is just sutlicient to perniit ci its passage into the larger or upper portions ot any one of the Tshaped slots 5 and which is connected to said body portion by a neck ll whos-e width is slightly less than that oi' the narrow portion of any one of said slots 5.

The lowest portion of each ot the substantially vertical edges of the flanges 7 is projected longitudinally of the bracket in the torni of lug l2 and these lugs are of such dimensions and `distance apart as to be capable ot simultaneously 'entering and closely Fitting into the wider upper portion ot' any one of the slots 5, when the neck l1 lies within the narrow portion ci the slot 5 next above that entered by said lugs. The neclr ll is a little longer than the thickness oi' the web ci' the channel bar or section l, and inasmuch as the head and neck are relatively thin the entire hook can be inclined upward while the head is being moved downward. behind the narrow portion ot thecorresponding slot 5. lvlhen the bottoni of the narrow portion of the slot is reached, the hook can then be swung,` downward into horizontal position, the lugs 12 entering the wider portions of the neat lower slot 5. The sizes and spacing of thepartsA are such that the said lugs are ont of contact with the top and bottoni of the said wider portion of the corresponding slot or hole when 'the bottoni ot' the head is in contact with the bottom ot the narrow portion of its corresponding slot or hole. The result is that the hook, together with the load carried thereby, is vertically supported by means ot the head and not by nieans of the lugs.

Ars clearly shown in the dra-wings the rear edges 13 ci the braces t are preferably inn clined away 'from the plane at right angles to the plane at the top oit the body (i. 'this insures contact with the supporting structure at points near the lugs and inerenteK Contact at other points. Thus the flanges are enabled to act most eil'ectively as diagonal braces to support the main body The hook then has the relative posilion shown in Fig. l and lateral stresses such as those due to the drawing et a cable across the top surface ot its body G, cannot longitudinally rotate or otherwise displace the hook, which is held rigidly' in position by the cooperation ot its lugs lQ-lQ with the head 10. Moreover, said lugs el`.ectually preventthe hook being` bodily raised trom its normal or horizontal position7 making it necessary tor it to be manually swung upwardly through an angle ot about 4h50 before such bodily raising is possible. As a consequence ot this construction and combination of parts, the accidental dislodgment ot the hook is effeetually prevented, so that it constitutes a firm support which cannot move laterally or become easily displaced. At the same time, it may be` entered in or removed from its supporting bar with the utmost ease. y

As indicated in Figs. et and 5, my invention is equally adapted :tor use as a detachable pole step such as may advantageously be used on metal, wood or other poles7 and while the latter may be equipped with bars such as those shown in Figs. 14 and 2, l preferably bolt or otherwise attach to the poles atthe desired points, supports in the form of bars or plates 15 having their ends oiset to form feet whereby they may be bolted7 screwed or nailed lo the supporting structure. ln this case7 each bar has an upper nl'sliaped slot 5 l'or the reception ot the head and neck oit a bracleet in the form olf a step and below this has two openings ltll oi. the proper size and position lo receii'e and be closely litted by the lugs lz; respectively. iis betere. the steps may be easily and quickly mounted or detached. lil/'hen desired iter use as shelt supports as shown in Fig. the top surface olf the lnai-lcet o is flat and the)4 are mounted on a supporting.` structure l as before describe l. The shelves 20-20 rest upon and extend between brackets mounted at the same level.

lf claim:

The combination oi a supporting; struc ture having a series ot similar uniformly spaced holes therein, each hole having a wider upper portion and a narrower lower portion7 and a sheet metal bracket havingl a lat upper portion ASoi-med with a -l"sha1.ied head adapted to horizontally enter the wider portion oi' one ot the Paid holes and to be moved downward to bring the wider part ot the head bach et the narrower portion o li the hole and also having` separated depending` sides formed integrally with and bent downward from the said upper portion and respectively terminating' in lugs adapted and positioned. to enter another one ot the said holes below the first said hole and to respire tively engage the sides oi said latter hole. the rear faces ot the depending` sides beine' inclined upward and outward to prevent eontact with the supportiir.; structure except at points near the lugs.

HERBERT O. ROCKl/VELL.

(lll 

